Lamp



FIG. 1 is a perspective view of the lamp embodying the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view, the right side being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

FIGS. 1-6 show portions of the lamp base and a button in broken lines. The broken lines immediately adjacent the shaded areas represent the boundaries of the claimed design and form no part thereof, while the other broken lines are shown for environmental purposes and do not form any part of the claimed design. 

The ornamental design for a lamp, as shown and described. 